Bolt-retaining attachment for wrenches



E. K; DEGENEW; BOLT RETAINING ATTACHMENT FOR WRETTMIE'S.

APPLICATION FILED JAN.27, I92!- 1,426, 8&7 Fatented Aug. 22 19222.

Jgl. Y

I: Edward Kllglgenar'- tnnrsn srares EDWARD K. DEGENER, OF LEWISTOWN,MONTANA.

BOLT-RETAINING: ATTACHMENT FOR WRENCHES.

Specification of Letters Patent. Patented. Aug, 22,. 1922,

Application filed January 27, 1921. Serial No. 440393.

T 0 all 20 ii om it may concern:

Be it known'that I, EDWARD K. DEeENER, a citizen of the United States,residing at .Lewistown, in the county of Fergus and State of Montana,have invented certain new and useful Improvements in Bolt-RetainingAttachments for Wrenches, of which the following is a specification.

The present invention relates to'tools, and more particularly to anattachment for application to bolt removing wrenches of the brace andsocket type and wrenches of the general character which require theretention of either the nut or the bolt head during the loosening of theopposite member.

An object of the present invention is to provide a simply andeconomically constructed device which maybe quickly and easily appliedto an ordinary T or brace socket wrench, and which is adapted to operatein opposition to the wrench for holding either the nut or the headrelatively stationary while the other member is turned by the wrench.

The invention has for a further object the provision of an attachmentwhich may be clamped upon the wrench by means of a thumb screw and clampof approved type, and which in itself is provided with means forresiliently drawing the attachment toward the socket of the wrench formaintaining'both the wrench socket and the socket of the attachment incorrect position upon the opposite ends of the bolt; whereby theattachment may be applied to a socket wrench and the wrench with theattachment may then be used by one man in the removal of transmissionand crank case bolts without a second manor assistant to hold the boltsstationary while the nuts are being removed.

A still further object of the present invention is to provide anattachment to a socket wrench, which, when applied thereto, forms acomplete tool adapted to do the work of two men, and'which may beoperated by one man, and a tool which will accurately and positivelyhold the bolt in place after the nut has been removed.

The above, and various other objects and advantages of this inventionwill in part be described in and in part be understood from thefollowing detailed description of the present preferred embodiment, thesame being illustrated in the accompanying drawing, wherein- Fig. 1 is aperspective view of an internal combustion engine having a socket wrenchwith the attachment of this invention mounted thereon and applied to thecoupling bolts of the engine crank case.

Fig. 2 is a detail enlarged side elevation of a brace socket wrenchhaving the bolt retaining attachment of this invention ap-- pliedthereto.

Fig. 3 is a detail enlarged sectional view taken through the opposedsockets or heads of the wrench and the attachment.

Fig. 42 is a transverse section taken through the socket wrenchsubstantially on the line 4-4 of Fig. 2, and showing the clamp of theattachment in engagement with the shank of the wrench.

Fig. 5 is an end elevation of the open en of the socket of the wrench.

Referring to the drawing, and first to Fig. 2,10 designates the shank ofa'type of brace or quick acting socket wrench provided on its upper endwith a crank portion 11 adapted to be manually turned for rotating thewrench. As shown'in Fig. 3, the lower end of the shank 10 carries asocket 12 fixed to the shank by a pin 13 so that the socket or head 12rotates with the shank.

The head 1.2 is open at its lower end and provided with a non-circularopening-extending for a considerable distance up into to be compressedupon movement of a nut into the open end of the socket for the purposeof steadying the wrench upon the nut as will subsequently appear.

The attachment of the invention comprises a rod 17 of a lengthpreferably greater than that of the shank 10, and which is provided witha return bend 18 upon its lower end adapted to aline with the shank 10.

The return bend 18 carries a socket or head 19, shown in Fig. 3, andwhich has a non-circular opening or bore therein in axial alinement withthe head 12. The upper end of the rod 17 carries a spring 20, the upperend of which is seated against a washer 21 held upon the upper end ofthe rod by a transversely extending pin 22.

The lower end of the spring 20 bears against a bracket 23 which ispreferably made in two parts 30 and 31. Each ofthe parts 30 and 31includes a half circle sleeve portion 24, and a' flat'apertured portion32,

which is bent into a plane substantially at right angles to the axis ofthe half circle sleeve, portion 24. In use, the flat portions 32 of theparts 30 and 31 are placed one upon the other, in order that the,apertures diate portions 33 of the parts 30-and31,

which: extend-radially from the half circle sleeve 'portion 24. Thelower end of the spring. 20 rests solely upon the upper flat portion 32of the part 30, as clearly illus-" trated in Figure 2 v 1Thus,thebracewrench may be freelyrotated in the sleeve provided by theparts 30 and 31. Itis preferred that the spring 20 be: maintained undercompression between the fixed Washer 21' and the flat portion 32 of thebracket 23 by aid of a pin 34, which engages-the under surface of thelower flat portion 32, belonging to the bracket part 31. LAsshown inFig. 1,. the crank case 26 of an engine is provided with the couplingflanges 27 secured together by nut and bolts 28 of any approve'dtype;vThe return bend 18 of the attachment is of such size as to-extend" andhold thehead 19 in proper alinement with the bolt heads and the rod 17is adaptedfto strike the flanges 27 of the'casing for holding; theattachment from turning in either loosening or tightening the bolts 28.

It is-thu s seen that when the wrench and the attachment areapplie'd toa' bolt 28, turning of-the wrench will rotatethe nut upon the bolt andthe-latter is held stationary by the -attachment. 1 a

The spring 20 holds the socket 19 up wardly in engagement with the bolthead so that; but oneman is required to operate the tool and.theoperator has both hands free to manipulate the crank of the wrench.

It is, of' course,understood that various changes and modifications maybe made in,

the details of construction and design of the above specificallydescribed embodiment of the present invention, such changes andmodifications being restricted only by the scopeof the following claims.

What is claimed is: I

l; A socket wrench comprising a shank and a socket head, a retaining rodincluding a shank and a socket head, a' two part bracketmember adaptedfor attachment of said retaining rod to said socket wrench, and

whereby the shank of said retaining rod lies-substantially parallel withtheshank of said socket wrench, said part of said two part memberincluding a relatively fiat arcuated portion and a half circular sleeve.ortion, the 'aXis of the latter being substantially at right angles tothe plane of the flat por' tion, said partadapted for pivotal mountingon'said rod independent of the other portion so that the half circlesleeve portions extend forwardly to 7 provide an enclosed sleevefor-loose gripplng about the shank of said socket wrench, and adjustingmeans engaging both parts of sald two part member intermediate the flatand sleeve portions thereof, whereby the sleeveportions can be readilyadjusted with said rodas a pivot point for said parts, and spring meansfor engaging said ,two part member and said retaining rod for normallyforcing the latter in direction to have the socket head thereof disposedadjacent the socket head off said socket wrench. v

2. A device of the class ClQSCI'lbGCl 'COIIlPI'lS- ing a socket wrenchincluding a} shank anda socket head, a retaining rod including astem anda socket head, said socket head adapted for alignment with the sockethead ofsaid.

wrench,'and to have the stem of said'rod lying substantially parallelwith the shank of said wrench,a two, part member, each part of saidmember having an apertured end and ahalf clrcular sleeve end, each=apertured end of the two part member being adapted to pivotally receivesaid'rod independent" of the other aper tur'ed end and when sopositioned having the half circle sleeve portion thereof providingasleeve for-gripping the shank of said wrench, a clamping screw formaintaining said parts of" said two: part member inposition wherebythewren'chmay berotated with respect to saidsleeve, anda spring engagingabout said rod and abutting theapertured end of-but a single one of saidpartsfor normallyforcing the socket head of said rod upwardlyto'wardthesocket head of said wrench.

EDWARD KJDEGENER.

